Geoff Hartlieb

Geoff Hartlieb's 2026 season

Geoff Hartlieb pitched in 18 games out of the bullpen for the Athletics in 2026, his seventh season in the majors. The right-hander worked 28 innings with a 4.82 ERA and a 1.57 WHIP, striking out 22 (17.7 percent of batters) and walking 14 (11.3 percent). He was worth 0.3 fWAR.

Through 86 career appearances, he has 103 strikeouts and a 7.16 ERA in 110⅔ innings.